Mass and wave function of the lightest scalar glueball

I have computed via Monte Carlo simulation the mass of the lightest scalar glueball in quarkless SU(3) gauge theory at lattice coupling {β}=6.0, 6.05, and 6.1. Combining these results with other recent string tension and glueball mass measurements, I extract a continuum glueball mass of m/ {}{σ} =3.10(15), where {σ} is the string tension. From the behavior of the glueball mass with lattice size the mean glueball diameter and effective three-glueball coupling can also be determined.